DTC Logic
DTC DETECTION LOGIC
NOTE: DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.
DTC No. | Trouble diagnosis (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1148 | CLOSED LOOP-B1 (Closed loop control function) | The closed loop control function does not operate even when vehicle is being driven in the specified condition. |
|
Diagnosis Procedure
DTC P1148 is displayed with DTC for A/F sensor 1.
When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.
Refer to EC, "DTC Index".
Keys
Type A (if so equipped)
1. Master key
2. Valet key
3. Key number plate
A key number plate is supplied with your keys.
Record the key number and keep it in a safe place
(such as your wallet), not in the vehicle. If you lose
your keys, it is recommended that you visit a
NISSAN dealer for ...
Evaporative emission system
Inspection
1.CHECK EVAP CANISTER
Block port (B).
Blow air into port (A) and check that it flows freely out of port (C).
Release blocked port (B).
Apply vacuum pressure to port (B) and check that vacuum pressure
exists at the ports (A) and (C).
Block port (A) and (B).
Apply pressure ...